Province

Coated abrasive products, once limited to sandpaper in woodworking shops, are versatile and efficient industrial tools. Machines ranging from portable Sanders to giant slab conditioners and roU grinders utili2e coated abrasives. Abrasive belt machines now perform many of the operations that were once the exclusive province of grinding wheels. 

Ballard Power Systems, in conjunction with the province of British Columbia and the government of Canada, have converted a diesel bus for Vancouver, B.C. Transit (43). This 9.1-m vehicle is powered by a 105-kW fuel cell. Gaseous hydrogen, stored on board the bus in DOT-approved glass-wound composite cylinders operating at 20.7 MPa (3000 psi), provides the necessary fuel requited for the 150-km projected vehicle range. 

The uranium ore from Elliot Lake, Canada, contains yttrium and lanthanides (see Uranium and uranium compounds). In the Jiangxi province of the People s Repubhc of China a large reserve of a rare-earth-containing clay contains over 1,000,000 t of REO. This ore is characterized by having a low cerium content (<5%) but a high content in samarium, europium, terbium, and yttrium compared to the main base REO ores (Table 6). ... 

In 1990 world consumption of lanthanides was approximately 35,000 metric tons (45). The most important markets were the United States /Canada (32.8%), China (18.6%), Europe (15.8%), Japan (14.5%), Eastern Europe (9.5%), the rest of Asia (7.3%), and the rest of the world (1.4%). The principal rare-earth manufacturers in 1993 were Molycorp Inc. and RhcJ)ne-Poulenc in the United States RhcJ)ne-Poulenc and Treibacher Chemische WAG in Europe Shinetsu Chemical, Nippon Yttrium, Mitsubishi Chemical Inc., and Santoku Metal Inc. in Japan Indian Rare Earths in India and several additional companies located in the CIS and in the Baotou, Gansu, Yue Long, and Jiangxi provinces in China. 

J. L. Bischoff and D. Z. Piper, eds.. Marine Geology and Oceanography of the Pacific Manganese Module Province, Plenum Press, New York, 1979. 

Unlike other natural resins, shellac [9000-59-3] is derived from the hardened secretion of the lac insect (species l ccifer (Tachardia) lacca Kerr (family Coccidae), also known as Kerns lacca (Kerr)). Shellac is a refined grade of the cmde lac secretion and is the most widely known lac product. Therefore, shellac has been accepted as the common generic term. Over 50% of the world s supply is produced in the Indian provinces of Bihar and Orissa, with the remainder originating in adjacent areas of southeast Asia such as Sri Lanka, China, Thailand, and Myanmar. 

Epoxidized natural mbber is stiU a strain crystallising mbber and therefore retains the high tensile strength of natural mbber. However, as can be seen from Table 5, ia other respects they have very Httie ia common. The epoxidation renders a much higher dampiag mbber, a much-improved resistance to oil swelling (iasofar as a 50 mol % modified natural mbber has similar oil resistance to a 34% nitrile mbber), and much-reduced air permeabiUty. This latest form of modified natural mbber therefore widens the appHcations base of the natural material and enables it to seek markets hitherto the sole province of some specialty synthetic mbbers. 

It is not known when the first metal resembling modem carbon steel was made intentionally. It has been speculated that steel was made in India around 100 BC. Remains of swords with steel blades have been found in Luristan, a western province of Iran (formerly Persia), at sites dated at ca 800 BC. 

For various reasons, including financial ones, the United States was slower than Japan and Europe to install continuous slab casters for the production of sheet. Electric melters cast billets continuously from about 1975 onward. Casting was done cmdely at first but the sophistication increased rapidly, culminating in the operation of a thin-slab caster at one of Nucor s plants. This opened up another avenue of attack on sheet markets, once the province of integrated mills. 

The Alberta (Athabasca) tar sand deposits are located in the northeast part of that Canadian province (Fig. 4). These are the only mineable tar sand deposits undergoing large-scale commercial exploitation as of this writing (ca 1997). 

Canada. The two predominant beer types are lager and ale. The preference for ale has decreased considerably over the years, from 60% in 1960 to 34% in 1984. The amounts produced of the porters and stouts have decreased also, from 1% to 0.02%. The approach to control the consumption of beer and other beverages is somewhat different in the provinces, especially as far as the retail sales are concerned (24). The per capita consumption was 82 L in 1987 and output increased from 20.8 x 10 hL in 1975 to 23.8 x 10 hL in 1988. 

Etibank is the sole producer of boron minerals and derivatives in Turkey, which is second in production only to the United States. The open-pit Kirka mine in the Eskisehir Province is the only source of Turkish sodium borate ore. A tincal concentrate is produced from ore that has been blasted and carried in tmcks to the concentration plant. The ore is screened and cmshed to reduce it to —100 mm and then hammer milled to —25 mm. The stockpiled material is further milled and screened to 6 mm. A fraction of +1 mm (+18 mesh, U.S. Standard) is washed and classified to remove fine clay. Clay is removed from the —1 mm faction bypassing it through cyclones and then through a classifier. This material is centrifuged and combined with the washed + 1 mm faction to produce a final product which is a —6 mm concentrate having 6—8 wt % moisture and 32% 2 3 1987 production was... 

Chinese production of borates is from szaibelyite deposits in Liaotung peninsular of Liaoning province of northeast China. 

Spain. Although Spain produces Httle or no graphite, large deposits occur in the province of Jaen and near Toledo. 

Authority for protection of patents and copyrights is set out in the Constitution and is the exclusive province of the federal government. Eederal legislation to protect trademarks is based on the authority of Congress, under the commerce clause of the Constitution, to regulate interstate and foreign commerce of the United States protection afforded by individual states is based on their power to regulate intrastate commerce. 

Ring closure resulting from attack of a heteroatom on a carboxyl group or its equivalent is merely a case of intramolecular esterification or amide formation. The y-butyrolactones or pyrrolidones obtained from such reactions are usually regarded as the province of aliphatic chemistry, so only a few examples are offered by way of illustration in Scheme 15. 

Code Administration The American Society of Mechanical Engineers has written the ASME Boiler and Pressure Vessel Code, which contains rirles for the design, fabrication, and inspection of boilers and pressure vessels. The ASME Code is an American National Standard. Most states in the United States and all Canadian provinces have passed legislation which makes the ASME Code or certain parts of it their legal requirement. Orrly a few jurisdictions have adopted the code for all vessels. The others apply it to certain types of vessels or to boilers. States employ inspectors (usually under a chief boiler inspector) to enforce code provisions. The authorities also depend a great deal on insurance company inspectors to see that boilers and pressure vessels are maintained in a safe condition. 

Inspection Authority The National Board of Boiler and Pressure Vessel Inspectors is composed of the chief inspectors of states and municipalities in the United States and Canadian provinces which have made any pari of the Boiler and Pressure Vessel Code a legal requirement. This board promotes uniform enforcement of boiler and pressure-vessel rules. One of the board s imporiant activities is providing examinations for, and commissioning of, inspectors. Inspeciors so qualified and employed by an insurance company state, municipality, or Canadian province may inspect a pressure vessel and permit it to be stamped ASME—NB (National Board). An inspector employed by a vessel user may authorize the use of only the ASME stamp. The ASME Code Committee authorizes fabricators to use the various ASME stamps. The stamps, however, may be apphed to a vessel only with the approval of the inspector. 

Anatoly K. Babko was bom on October 15, 1905 in the province of Tomsk (Russia) to a railwayman s family. In 1908 the family moved to the Ukraine, where he graduated from secondary school in 1921. In 1922 he was admitted to the Chemistry Department of the Kyiv Polytechnic Institute, and in 1928 he was accepted there for PhD study under the supervision of Professor N.A. Tananaev. In 1930 he became a lecturer at the Kyiv Institute of Food-processing Industry, and in 1934 he was appointed senior lecturer in the Department of Analytical Chemistry at Kyiv. State University where he worked for the rest of his life, working also from 1937 in the Institute of General and Inorganic Chemistry of the Ukrainian Academy of Sciences. 

College of Chemistry Jilin Province Research Center for Engineering Technology, Jilin University, Changchun 130023, China qhjin jlu.edu.cn... 

National air pollution control regulations in some instances are preemptive in that they do not allow subsidiary jurisdictions states, provinces,... 

In many countries, provinces or states have enacted air pollution control regulations. Unless or until superseded by national enactment, these regulations are the ones currently in force. In some cases, municipal air pollution control regulatory enactments are the ones currently in force and will remain so unhl superseded by state, provincial, or national laws or regulations,... 

How is the air pollution control agency in your state or province organized Where is its principal office Who is its head ... 

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